Add [Fact] attributes to methodical JIT tests (#61536)

For now there's no functional change to the behavior of the tests,
I have just copied the bits to inject from Jeremy's example in his
pending PR.

Thanks

Tomas

Contributes to: #54512

Author: trylek

src/tests/JIT/Methodical/Arrays/huge/huge_b.il

@@ -25,6 +25,13 @@
 
 
 
+}
+.assembly extern xunit.core
+{
+    .publickeytoken = (
+        8d 05 b1 bb 7a 6f db 6c
+     )
+     .ver 2:4:2:0
 }
 .module 'test.exe'
 .namespace JitTest
@@ -35,6 +42,9 @@
     .method private hidebysig static int32
             Main() il managed
     {
+      .custom instance void [xunit.core]Xunit.FactAttribute::.ctor() = (
+          01 00 00 00
+      )
       .entrypoint
       .maxstack  70
       .locals (bool[,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,] matrix,

src/tests/JIT/Methodical/Arrays/huge/huge_i4.il

@@ -25,6 +25,13 @@
 
 
 
+}
+.assembly extern xunit.core
+{
+    .publickeytoken = (
+        8d 05 b1 bb 7a 6f db 6c
+     )
+     .ver 2:4:2:0
 }
 .module 'test.exe'
 .namespace JitTest
@@ -35,6 +42,9 @@
     .method private hidebysig static int32
             Main() il managed
     {
+      .custom instance void [xunit.core]Xunit.FactAttribute::.ctor() = (
+          01 00 00 00
+      )
       .entrypoint
       .maxstack  70
       .locals (int32[,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,] matrix,

src/tests/JIT/Methodical/Arrays/huge/huge_objref.il

@@ -18,6 +18,13 @@
 .assembly 'test'
 {
 }
+.assembly extern xunit.core
+{
+    .publickeytoken = (
+        8d 05 b1 bb 7a 6f db 6c
+     )
+     .ver 2:4:2:0
+}
 .module 'test.exe'
 .namespace JitTest
 {
@@ -48,6 +55,9 @@
     .method private hidebysig static int32
             Main() il managed
     {
+      .custom instance void [xunit.core]Xunit.FactAttribute::.ctor() = (
+          01 00 00 00
+      )
       .entrypoint
       .maxstack  70
       .locals (class JitTest.TestClass[,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,] matrix,

src/tests/JIT/Methodical/Arrays/huge/huge_r4.il

@@ -25,6 +25,13 @@
 
 
 
+}
+.assembly extern xunit.core
+{
+    .publickeytoken = (
+        8d 05 b1 bb 7a 6f db 6c
+     )
+     .ver 2:4:2:0
 }
 .module 'test.exe'
 .namespace JitTest
@@ -35,6 +42,9 @@
     .method private hidebysig static int32
             Main() il managed
     {
+      .custom instance void [xunit.core]Xunit.FactAttribute::.ctor() = (
+          01 00 00 00
+      )
       .entrypoint
       .maxstack  70
       .locals (float32[,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,] matrix,

src/tests/JIT/Methodical/Arrays/huge/huge_r8.il

@@ -25,6 +25,13 @@
 
 
 
+}
+.assembly extern xunit.core
+{
+    .publickeytoken = (
+        8d 05 b1 bb 7a 6f db 6c
+     )
+     .ver 2:4:2:0
 }
 .module 'test.exe'
 .namespace JitTest
@@ -35,6 +42,9 @@
     .method private hidebysig static int32
             Main() il managed
     {
+      .custom instance void [xunit.core]Xunit.FactAttribute::.ctor() = (
+          01 00 00 00
+      )
       .entrypoint
       .maxstack  70
       .locals (float64[,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,] matrix,

src/tests/JIT/Methodical/Arrays/huge/huge_struct.il

@@ -25,6 +25,13 @@
 
 
 
+}
+.assembly extern xunit.core
+{
+    .publickeytoken = (
+        8d 05 b1 bb 7a 6f db 6c
+     )
+     .ver 2:4:2:0
 }
 .module 'test.exe'
 .namespace JitTest
@@ -43,6 +50,9 @@
     .method private hidebysig static int32
             Main() il managed
     {
+      .custom instance void [xunit.core]Xunit.FactAttribute::.ctor() = (
+          01 00 00 00
+      )
       .entrypoint
       .maxstack  70
       .locals (value class JitTest.TestStruct[,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,] matrix,

src/tests/JIT/Methodical/Arrays/huge/huge_u8.il

@@ -25,6 +25,13 @@
 
 
 
+}
+.assembly extern xunit.core
+{
+    .publickeytoken = (
+        8d 05 b1 bb 7a 6f db 6c
+     )
+     .ver 2:4:2:0
 }
 .module 'test.exe'
 .namespace JitTest
@@ -35,6 +42,9 @@
     .method private hidebysig static int32
             Main() il managed
     {
+      .custom instance void [xunit.core]Xunit.FactAttribute::.ctor() = (
+          01 00 00 00
+      )
       .entrypoint
       .maxstack  70
       .locals (unsigned int64[,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,] matrix,

src/tests/JIT/Methodical/Arrays/huge_struct.il

@@ -19,6 +19,13 @@
   //                                                                                  bool) = ( 01 00 00 01 00 00 ) 
 
 
+}
+.assembly extern xunit.core
+{
+    .publickeytoken = (
+        8d 05 b1 bb 7a 6f db 6c
+     )
+     .ver 2:4:2:0
 }
 .module 'huge_strcut.exe'
 // MVID: {23E3D49B-6CFD-4DA0-8C9D-A611CE0BA103}
@@ -38,6 +45,9 @@
     .method private hidebysig static int32
             Main() il managed
     {
+      .custom instance void [xunit.core]Xunit.FactAttribute::.ctor() = (
+          01 00 00 00
+      )
       .entrypoint
       // Code size       38 (0x26)
       .maxstack  70

src/tests/JIT/Methodical/Arrays/lcs/lcs_ldlen.il

@@ -20,6 +20,13 @@
 
 
 
+}
+.assembly extern xunit.core
+{
+    .publickeytoken = (
+        8d 05 b1 bb 7a 6f db 6c
+     )
+     .ver 2:4:2:0
 }
 .module 'lcs.exe'
 // MVID: {52ED7FCA-78F1-42F6-8DE5-7388302AFAA6}
@@ -603,6 +610,9 @@
     .method private hidebysig static int32
             Main() il managed
     {
+      .custom instance void [xunit.core]Xunit.FactAttribute::.ctor() = (
+          01 00 00 00
+      )
       .entrypoint
       // Code size       227 (0xe3)
       .maxstack  5

src/tests/JIT/Methodical/Arrays/misc/address.il

@@ -19,6 +19,13 @@
 .assembly 'test'
 {
 }
+.assembly extern xunit.core
+{
+    .publickeytoken = (
+        8d 05 b1 bb 7a 6f db 6c
+     )
+     .ver 2:4:2:0
+}
 .module 'test.exe'
 .namespace JitTest
 {
@@ -102,6 +109,9 @@
     .method private hidebysig static int32
             Main() il managed
     {
+      .custom instance void [xunit.core]Xunit.FactAttribute::.ctor() = (
+          01 00 00 00
+      )
       .entrypoint
       .maxstack  4
       .locals (int32[10000...10005] V_0,