Workaround

src/Compilers/CSharp/Test/Semantic/Semantics/InterceptorsTests.cs

@@ -1663,7 +1663,7 @@ partial class C
     [Fact]
     public void ArgumentLabels()
     {
-        var source = """
+        var source = ("""
             using System;
 
             class C
@@ -1680,9 +1680,9 @@ public static void Main()
                     c.InterceptableMethod(s2: "World", s1: "Hello ");
                 }
             }
-            """;
+            """, "Program.cs");
         var locations = GetInterceptableLocations(source);
-        var interceptors = $$"""
+        var interceptors = ($$"""
             using System.Runtime.CompilerServices;
             using System;
 
@@ -1691,7 +1691,7 @@ static class D
                 [InterceptsLocation({{GetAttributeArgs(locations[1]!)}})]
                 public static void Interceptor1(this C c, string s1, string s2) { Console.Write("interceptor " + s1 + s2); }
             }
-            """;
+            """, "Interceptors.cs");
         var verifier = CompileAndVerify([source, interceptors, s_attributesSource], parseOptions: RegularWithInterceptors, expectedOutput: "interceptor Hello World");
         verifier.VerifyDiagnostics();
     }
@@ -3965,7 +3965,7 @@ static class D
     public void SignatureMismatch_08()
     {
         // nint/IntPtr difference
-        var source = """
+        var source = ("""
             using System;
 
             class C
@@ -3987,9 +3987,9 @@ public static void Main()
                     c.Method1(default!);
                 }
             }
-            """;
+            """, "Program.cs");
         var locations = GetInterceptableLocations(source);
-        var interceptors = $$"""
+        var interceptors = ($$"""
             using System.Runtime.CompilerServices;
             using System;
 
@@ -4003,25 +4003,7 @@ static class D
                 [InterceptsLocation({{GetAttributeArgs(locations[3]!)}})]
                 public static void Interceptor2(this C s, nint param2) => Console.Write(2);
             }
-            """;
-
-        // TODO2: 'InterceptableLocation' is not finding the correct call with this specific set of inputs. change ANYTHING about the content of 'source' and expected errors will be reported.
-        // It doesn't appear to be a hash collision issue, unsure yet what it really is.
-
-        var comp = CreateCompilation([source, interceptors, s_attributesSource], parseOptions: RegularWithInterceptors);
-        comp.VerifyEmitDiagnostics(
-            // (6,6): warning CS9154: Intercepting a call to 'C.Method1(nint)' with interceptor 'D.Interceptor1(C, IntPtr)', but the signatures do not match.
-            //     [InterceptsLocation(1, "7SN+G7Nd46k5We+z0k74ffUAAAA=")] // 1
-            Diagnostic(ErrorCode.WRN_InterceptorSignatureMismatch, "InterceptsLocation").WithArguments("C.Method1(nint)", "D.Interceptor1(C, System.IntPtr)").WithLocation(6, 6),
-            // (7,6): error CS9144: Cannot intercept method 'Console.Write(int)' with interceptor 'D.Interceptor1(C, IntPtr)' because the signatures do not match.
-            //     [InterceptsLocation(1, "7SN+G7Nd46k5We+z0k74fRMBAAA=")]
-            Diagnostic(ErrorCode.ERR_InterceptorSignatureMismatch, "InterceptsLocation").WithArguments("System.Console.Write(int)", "D.Interceptor1(C, System.IntPtr)").WithLocation(7, 6),
-            // (10,6): warning CS9154: Intercepting a call to 'C.Method2(IntPtr)' with interceptor 'D.Interceptor2(C, nint)', but the signatures do not match.
-            //     [InterceptsLocation(1, "7SN+G7Nd46k5We+z0k74fTMBAAA=")] // 2
-            Diagnostic(ErrorCode.WRN_InterceptorSignatureMismatch, "InterceptsLocation").WithArguments("C.Method2(System.IntPtr)", "D.Interceptor2(C, nint)").WithLocation(10, 6));
-
-        // TODO2: re-enable
-#if false
+            """, "Interceptors.cs");
         var verifier = CompileAndVerify([source, interceptors, s_attributesSource], parseOptions: RegularWithInterceptors, expectedOutput: "1122");
         verifier.VerifyDiagnostics(
             // (6,6): warning CS9154: Intercepting a call to 'C.Method1(nint)' with interceptor 'D.Interceptor1(C, IntPtr)', but the signatures do not match.
@@ -4030,7 +4012,6 @@ static class D
             // (10,6): warning CS9154: Intercepting a call to 'C.Method2(IntPtr)' with interceptor 'D.Interceptor2(C, nint)', but the signatures do not match.
             //     [InterceptsLocation(1, "3ONc0QK7vNwCujpTORn5YjUBAAA=")] // 2
             Diagnostic(ErrorCode.WRN_InterceptorSignatureMismatch, "InterceptsLocation").WithArguments("C.Method2(System.IntPtr)", "D.Interceptor2(C, nint)").WithLocation(10, 6));
-#endif
     }
 
     [Fact]