[clang] Enable matrices in HLSL (PR #111415)

[Florian Hahn via cfe-commits]

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@@ -17,12 +17,12 @@ void add(sx10x10_t a, sx5x10_t b, sx10x5_t c) {
   // expected-error at -1 {{assigning to 'sx10x10_t' (aka 'float __attribute__((matrix_type(10, 10)))') from incompatible type 'sx5x10_t' (aka 'float __attribute__((matrix_type(5, 10)))')}}
 
   a = b + &c;
-  // expected-error at -1 {{invalid operands to binary expression ('sx5x10_t' (aka 'float __attribute__((matrix_type(5, 10)))') and 'sx10x5_t *' (aka 'float  __attribute__((matrix_type(10, 5)))*'))}}
-  // expected-error at -2 {{casting 'sx10x5_t *' (aka 'float  __attribute__((matrix_type(10, 5)))*') to incompatible type 'float'}}
+  // expected-error at -1 {{invalid operands to binary expression ('sx5x10_t' (aka 'float __attribute__((matrix_type(5, 10)))') and 'sx10x5_t *' (aka 'float * __attribute__((matrix_type(10, 5)))'))}}
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fhahn wrote:

Is this change intentional? IIUC the patch should be NFC for the existing matrix type support?

https://github.com/llvm/llvm-project/pull/111415