Centralize vararg test exclusions

Author: jkotas

src/libraries/Common/tests/TestUtilities/System/PlatformDetection.cs

@@ -72,7 +72,7 @@ public static partial class PlatformDetection
         public static bool IsX64Process => RuntimeInformation.ProcessArchitecture == Architecture.X64;
         public static bool IsX86Process => RuntimeInformation.ProcessArchitecture == Architecture.X86;
         public static bool IsNotX86Process => !IsX86Process;
-        public static bool IsArgIteratorSupported => IsMonoRuntime || (IsWindows && IsNotArmProcess && !IsNativeAot);
+        public static bool IsArgIteratorSupported => IsMonoRuntime || (IsWindows && !IsNativeAot);
         public static bool IsArgIteratorNotSupported => !IsArgIteratorSupported;
         public static bool Is32BitProcess => IntPtr.Size == 4;
         public static bool Is64BitProcess => IntPtr.Size == 8;

src/tests/JIT/Directed/PREFIX/unaligned/1/arglistARM.il

@@ -3,9 +3,8 @@
     <!-- Needed for CLRTestTargetUnsupported -->
     <RequiresProcessIsolation>true</RequiresProcessIsolation>
     <CLRTestPriority>1</CLRTestPriority>
-    <!-- There is a 32, arm and 64 version of this test to allow it to be compiled for all targets -->
+    <!-- There is a 32 and 64 version of this test to allow it to be compiled for all targets -->
     <CLRTestTargetUnsupported Condition="'$(TargetBits)' != '32'">true</CLRTestTargetUnsupported>
-    <CLRTestTargetUnsupported Condition="'$(TargetArchitecture)' == 'arm' or '$(TargetArchitecture)' == 'armel'">true</CLRTestTargetUnsupported>
     <DebugType>PdbOnly</DebugType>
     <Optimize>True</Optimize>
     <!-- Test uses varargs -->

src/tests/JIT/Directed/PREFIX/unaligned/1/arglist_Target_32BIT_unaligned_1.ilproj

@@ -3,13 +3,13 @@
     <!-- Needed for CLRTestTargetUnsupported -->
     <RequiresProcessIsolation>true</RequiresProcessIsolation>
     <CLRTestPriority>1</CLRTestPriority>
-    <!-- There is a 32, arm and 64 version of this test to allow it to be compiled for all targets -->
+    <!-- There is a 32 and 64 version of this test to allow it to be compiled for all targets -->
     <CLRTestTargetUnsupported Condition="'$(TargetBits)' != '64'">true</CLRTestTargetUnsupported>
     <DebugType>PdbOnly</DebugType>
     <Optimize>True</Optimize>
     <!-- Test uses varargs -->
     <NativeAotIncompatible>true</NativeAotIncompatible>
-    <!-- Tests uses arglist IL opcode -->
+    <!-- Test uses varargs -->
     <InterpreterIncompatible>true</InterpreterIncompatible>
   </PropertyGroup>
   <ItemGroup>

src/tests/JIT/Directed/PREFIX/unaligned/1/arglist_Target_64BIT_unaligned_1.ilproj

@@ -3,9 +3,8 @@
     <!-- Needed for CLRTestTargetUnsupported -->
     <RequiresProcessIsolation>true</RequiresProcessIsolation>
     <CLRTestPriority>1</CLRTestPriority>
-    <!-- There is a 32, arm and 64 version of this test to allow it to be compiled for all targets -->
+    <!-- There is a 32 and 64 version of this test to allow it to be compiled for all targets -->
     <CLRTestTargetUnsupported Condition="'$(TargetBits)' != '32'">true</CLRTestTargetUnsupported>
-    <CLRTestTargetUnsupported Condition="'$(TargetArchitecture)' == 'arm' or '$(TargetArchitecture)' == 'armel'">true</CLRTestTargetUnsupported>
     <DebugType>PdbOnly</DebugType>
     <Optimize>True</Optimize>
     <!-- Test uses varargs -->

src/tests/JIT/Directed/PREFIX/unaligned/1/arglist_Target_ARM_unaligned_1.ilproj

@@ -3,13 +3,13 @@
     <!-- Needed for CLRTestTargetUnsupported -->
     <RequiresProcessIsolation>true</RequiresProcessIsolation>
     <CLRTestPriority>1</CLRTestPriority>
-    <!-- There is a 32, arm and 64 version of this test to allow it to be compiled for all targets -->
+    <!-- There is a 32 and 64 version of this test to allow it to be compiled for all targets -->
     <CLRTestTargetUnsupported Condition="'$(TargetBits)' != '64'">true</CLRTestTargetUnsupported>
     <DebugType>PdbOnly</DebugType>
     <Optimize>True</Optimize>
     <!-- Test uses varargs -->
     <NativeAotIncompatible>true</NativeAotIncompatible>
-    <!-- Tests uses arglist IL opcode -->
+    <!-- Test uses varargs -->
     <InterpreterIncompatible>true</InterpreterIncompatible>
   </PropertyGroup>
   <ItemGroup>