spirv-reader: fix SPIR-V types in handle tests

Bug: tint:109
Change-Id: Icb4cbe12334c92a86d1c52a0b3569fb22a1cfc7c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/34421
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Auto-Submit: David Neto <dneto@google.com>
diff --git a/src/reader/spirv/parser_impl_handle_test.cc b/src/reader/spirv/parser_impl_handle_test.cc
index 6c72b50..655f11b 100644
--- a/src/reader/spirv/parser_impl_handle_test.cc
+++ b/src/reader/spirv/parser_impl_handle_test.cc
@@ -49,8 +49,8 @@
     %uint = OpTypeInt 32 0
     %int = OpTypeInt 32 1
 
-    %int_3 = OpConstant %uint 3
-    %int_4 = OpConstant %uint 4
+    %int_3 = OpConstant %int 3
+    %int_4 = OpConstant %int 4
     %uint_0 = OpConstant %uint 0
     %uint_1 = OpConstant %uint 1
     %uint_2 = OpConstant %uint 2