d3dcompiler: Add D3D_BLOB_PATCH_CONSTANT_SIGNATURE_BLOB to D3DGetBlobPart().

dlls/d3dcompiler_43/blob.c

@@ -137,6 +137,10 @@ static BOOL check_blob_part(DWORD tag, D3D_BLOB_PART part)
             if (tag == TAG_ISGN || tag == TAG_OSGN) add = TRUE;
             break;
 
+        case D3D_BLOB_PATCH_CONSTANT_SIGNATURE_BLOB:
+            if (tag == TAG_PCSG) add = TRUE;
+            break;
+
         case D3D_BLOB_DEBUG_INFO:
             if (tag == TAG_SDBG) add = TRUE;
             break;
@@ -208,6 +212,7 @@ HRESULT d3dcompiler_get_blob_part(const void *data, SIZE_T data_size, D3D_BLOB_P
     {
         case D3D_BLOB_INPUT_SIGNATURE_BLOB:
         case D3D_BLOB_OUTPUT_SIGNATURE_BLOB:
+        case D3D_BLOB_PATCH_CONSTANT_SIGNATURE_BLOB:
         case D3D_BLOB_DEBUG_INFO:
             if (count != 1) count = 0;
             break;

dlls/d3dcompiler_43/d3dcompiler_private.h

@@ -583,6 +583,7 @@ void SlDeleteShader(struct bwriter_shader *shader);
 #define TAG_DXBC MAKE_TAG('D', 'X', 'B', 'C')
 #define TAG_ISGN MAKE_TAG('I', 'S', 'G', 'N')
 #define TAG_OSGN MAKE_TAG('O', 'S', 'G', 'N')
+#define TAG_PCSG MAKE_TAG('P', 'C', 'S', 'G')
 #define TAG_SDBG MAKE_TAG('S', 'D', 'B', 'G')
 
 struct dxbc_section