Fix irgen tests prespecialized-metadata on bot

No need to check for function attribute references numbers whose
implementation is not checked.

Author: aschwaighofer

test/IRGen/prespecialized-metadata/struct-inmodule-1argument-1conformance-1distinct_use.swift

@@ -58,6 +58,6 @@ doit()
 // CHECK: [[EXIT_PRESPECIALIZED]]:
 // CHECK:   ret %swift.metadata_response { %swift.type* getelementptr inbounds (%swift.full_type, %swift.full_type* bitcast (<{ i8**, [[INT]], %swift.type_descriptor*, %swift.type*, i8**, i32{{(, \[4 x i8\])?}}, i64 }>* @"$s4main5ValueVySiGMf" to %swift.full_type*), i32 0, i32 1), [[INT]] 0 }
 // CHECK: [[EXIT_NORMAL]]:
-// CHECK:   {{%[0-9]+}} = call swiftcc %swift.metadata_response @__swift_instantiateGenericMetadata([[INT]] %0, i8* [[ERASED_TYPE]], i8* [[ERASED_TABLE]], i8* undef, %swift.type_descriptor* bitcast (<{ i32, i32, i32, i32, i32, i32, i32, i32, i32, i16, i16, i16, i16, i8, i8, i8, i8, i32, i32, i32 }>* @"$s4main5ValueVMn" to %swift.type_descriptor*)) #12
+// CHECK:   {{%[0-9]+}} = call swiftcc %swift.metadata_response @__swift_instantiateGenericMetadata([[INT]] %0, i8* [[ERASED_TYPE]], i8* [[ERASED_TABLE]], i8* undef, %swift.type_descriptor* bitcast (<{ i32, i32, i32, i32, i32, i32, i32, i32, i32, i16, i16, i16, i16, i8, i8, i8, i8, i32, i32, i32 }>* @"$s4main5ValueVMn" to %swift.type_descriptor*))
 // CHECK:   ret %swift.metadata_response {{%[0-9]+}}
 // CHECK: }

test/IRGen/prespecialized-metadata/struct-inmodule-1argument-1distinct_generic_use.swift

@@ -22,7 +22,7 @@ func consume<T>(_ t: T) {
 // TODO: Once prespecialization is done for generic arguments which are 
 //       themselves generic (Outer<Inner<Int>>, here), a direct reference to
 //       the prespecialized metadata should be emitted here.
-// CHECK:  [[TYPE:%[0-9]+]] = call %swift.type* @__swift_instantiateConcreteTypeFromMangledName({ i32, i32 }* @"$s4main5OuterVyAA5InnerVySiGGMD") #11
+// CHECK:  [[TYPE:%[0-9]+]] = call %swift.type* @__swift_instantiateConcreteTypeFromMangledName({ i32, i32 }* @"$s4main5OuterVyAA5InnerVySiGGMD")
 // CHECK:   call swiftcc void @"$s4main7consumeyyxlF"(%swift.opaque* noalias nocapture %{{[0-9]+}}, %swift.type* [[TYPE]])
 // CHECK: }
 func doit() {