spirv-reader: handle tests SPIR-V validity, part 3

Bug: tint:765
Change-Id: I22a4851218a3dbcc95d17334e6c6ff41393c7016
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50448
Commit-Queue: David Neto <dneto@google.com>
Reviewed-by: Alan Baker <alanbaker@google.com>
diff --git a/src/reader/spirv/parser_impl_handle_test.cc b/src/reader/spirv/parser_impl_handle_test.cc
index 874b529..aa5d7cb 100644
--- a/src/reader/spirv/parser_impl_handle_test.cc
+++ b/src/reader/spirv/parser_impl_handle_test.cc
@@ -1152,7 +1152,8 @@
 
 TEST_P(SpvParserHandleTest_DeclUnderspecifiedHandle, Variable) {
   const auto assembly = Preamble() + R"(
-     OpEntryPoint GLCompute %main "main"
+     OpEntryPoint Fragment %main "main"
+     OpExecutionMode %main OriginUpperLeft
      OpDecorate %10 DescriptorSet 0
      OpDecorate %10 Binding 0
 )" + GetParam().decorations +