[test] add --implicit-check-not=error and avoid expensive .* regex

Author: MaskRay

lld/test/ELF/aarch64-reloc-pauth-ro.s

@@ -3,7 +3,7 @@
 # RUN: llvm-mc -filetype=obj -triple=aarch64 %p/Inputs/shared2.s -o %t.so.o
 # RUN: ld.lld -shared %t.so.o -soname=so -o %t.so
 # RUN: llvm-mc -filetype=obj -triple=aarch64 %s -o %t.o
-# RUN: not ld.lld -pie %t.o %t.so -o %t2 2>&1 | FileCheck -DFILE=%t %s
+# RUN: not ld.lld -pie %t.o %t.so -o %t2 2>&1 | FileCheck -DFILE=%t %s --implicit-check-not=error:
 
 # CHECK:      error: relocation R_AARCH64_AUTH_ABS64 cannot be used against symbol 'zed2'; recompile with -fPIC
 # CHECK-NEXT: >>> defined in [[FILE]].so

lld/test/ELF/aarch64-reloc-pauth.s

@@ -43,9 +43,10 @@
 
 # PIE:      Section Headers:
 # PIE-NEXT: Name Type Address Off Size ES Flg Lk Inf Al
-# PIE:      .rela.dyn RELA {{0*}}[[ADDR1:.*]] {{0*}}[[ADDR1]] 000108 18 A 1 0 8
+# PIE:      .rela.dyn RELA {{0*}}[[#%x,ADDR1:]]
+# PIE-SAME:                                     {{0*}}[[#ADDR1]] 000108 18 A 1 0 8
 
-# PIE:      Relocation section '.rela.dyn' at offset 0x[[ADDR1]] contains 11 entries:
+# PIE:      Relocation section '.rela.dyn' at offset 0x[[#ADDR1]] contains 11 entries:
 # PIE-NEXT:     Offset             Info             Type               Symbol's Value  Symbol's Name + Addend
 # PIE-NEXT: 0000000000030470  0000000000000411 R_AARCH64_AUTH_RELATIVE 1
 # PIE-NEXT: 0000000000030478  0000000000000411 R_AARCH64_AUTH_RELATIVE 30472