[test] IRGen: Adjust FileCheck patterns for new nuw attribute in upstream LLVM

This attribute was introduced in
7eca38ce76d5d1915f4ab7e665964062c0b37697 (llvm-project).

Match it using a wildcard regex, since it is not relevant to these
tests.

This is intended to reduce future conflicts with rebranch.

Author: AnthonyLatsis

validation-test/IRGen/rdar149985633.swift

@@ -5,27 +5,27 @@
 // CHECK: define {{.*}}swiftcc void @"$s13rdar1499856334DateV1a1b1c1d1e1fACSiSg_A5JtcfC"(ptr noalias nocapture writeonly sret(%T13rdar1499856334DateV) %0, i64 %1, i8 %2, i64 %3, i8 %4, i64 %5, i8 %6, i64 %7, i8 %8, i64 %9, i8 %10, i64 %11, i8 %12)
 // CHECK: entry:
 // CHECK:   store i64 %1
-// CHECK:   getelementptr inbounds i8, ptr %0, i64 8
+// CHECK:   getelementptr inbounds{{.*}} i8, ptr %0, i64 8
 // CHECK:   store i8 %2
-// CHECK:   getelementptr inbounds i8, ptr %0, i64 16
+// CHECK:   getelementptr inbounds{{.*}} i8, ptr %0, i64 16
 // CHECK:   store i64 %3
-// CHECK:   getelementptr inbounds i8, ptr %0, i64 24
+// CHECK:   getelementptr inbounds{{.*}} i8, ptr %0, i64 24
 // CHECK:   store i8 %4
-// CHECK:   getelementptr inbounds i8, ptr %0, i64 32
+// CHECK:   getelementptr inbounds{{.*}} i8, ptr %0, i64 32
 // CHECK:   store i64 %5
-// CHECK:   getelementptr inbounds i8, ptr %0, i64 40
+// CHECK:   getelementptr inbounds{{.*}} i8, ptr %0, i64 40
 // CHECK:   store i8 %6
-// CHECK:   getelementptr inbounds i8, ptr %0, i64 48
+// CHECK:   getelementptr inbounds{{.*}} i8, ptr %0, i64 48
 // CHECK:   store i64 %7
-// CHECK:   getelementptr inbounds i8, ptr %0, i64 56
+// CHECK:   getelementptr inbounds{{.*}} i8, ptr %0, i64 56
 // CHECK:   store i8 %8
-// CHECK:   getelementptr inbounds i8, ptr %0, i64 64
+// CHECK:   getelementptr inbounds{{.*}} i8, ptr %0, i64 64
 // CHECK:   store i64 %9
-// CHECK:   getelementptr inbounds i8, ptr %0, i64 72
+// CHECK:   getelementptr inbounds{{.*}} i8, ptr %0, i64 72
 // CHECK:   store i8 %10
-// CHECK:   getelementptr inbounds i8, ptr %0, i64 80
+// CHECK:   getelementptr inbounds{{.*}} i8, ptr %0, i64 80
 // CHECK:   store i64 %11
-// CHECK:   getelementptr inbounds i8, ptr %0, i64 88
+// CHECK:   getelementptr inbounds{{.*}} i8, ptr %0, i64 88
 // CHECK:   store i8 %12
 // CHECK:   ret void
 // CHECK: }