fix compiletest for spv1.4 and up

Author: Firestar99

tests/compiletests/ui/dis/asm_op_decorate.rs

@@ -17,6 +17,9 @@
 // ignore-vulkan1.2
 // ignore-vulkan1.3
 // ignore-vulkan1.4
+// ignore-spv1.4
+// ignore-spv1.5
+// ignore-spv1.6
 
 use core::arch::asm;
 use spirv_std::spirv;

tests/compiletests/ui/dis/non-writable-storage_buffer.rs

@@ -18,6 +18,9 @@
 // ignore-vulkan1.2
 // ignore-vulkan1.3
 // ignore-vulkan1.4
+// ignore-spv1.4
+// ignore-spv1.5
+// ignore-spv1.6
 
 use spirv_std::spirv;