[Test][Driver] Clean up FileCheck prefixes for internal shell

Author: ramonasuncion

test/Driver/options-interpreter.swift

@@ -17,7 +17,8 @@
 // RUN: %swift_driver_plain -sdk "" -### -target x86_64-apple-macosx10.9 -resource-dir /RSRC/ %s | %FileCheck -check-prefix=CHECK-RESOURCE-DIR-ONLY %s
 // CHECK-RESOURCE-DIR-ONLY: # DYLD_LIBRARY_PATH=/RSRC/macosx DYLD_FRAMEWORK_PATH=/System/Library/Frameworks{{$}}
 
-// RUN: %swift_driver_plain -sdk "" -### -target x86_64-unknown-linux-gnu -resource-dir /RSRC/ %s | %FileCheck -check-prefix=CHECK-RESOURCE-DIR-ONLY-LINUX${LD_LIBRARY_PATH+_LAX} %s
+// RUN: %swift_driver_plain -sdk "" -### -target x86_64-unknown-linux-gnu -resource-dir /RSRC/ %s | %FileCheck -check-prefix=CHECK-RESOURCE-DIR-ONLY-LINUX %s
+// RUN: %swift_driver_plain -sdk "" -### -target x86_64-unknown-linux-gnu -resource-dir /RSRC/ %s | %FileCheck -check-prefix=CHECK-RESOURCE-DIR-ONLY-LINUX_LAX %s
 // CHECK-RESOURCE-DIR-ONLY-LINUX: # LD_LIBRARY_PATH=/RSRC/linux{{$}}
 // CHECK-RESOURCE-DIR-ONLY-LINUX_LAX: # LD_LIBRARY_PATH=/RSRC/linux{{$|:}}
 
@@ -57,10 +58,12 @@
 // RUN: %swift_driver_plain -sdk /sdk -### -target aarch64-unknown-linux-gnu %s | %FileCheck -check-prefix=CHECK-RUNTIME-LIBRARY-PATH %s
 // CHECK-RUNTIME-LIBRARY-PATH-NOT: # LD_LIBRARY_PATH=/sdk/usr/lib/swift/linux:/sdk/usr/lib/swift
 
-// RUN: %swift_driver_plain -sdk "" -### -target x86_64-unknown-linux-gnu -L/foo/ %s | %FileCheck -check-prefix=CHECK-L-LINUX${LD_LIBRARY_PATH+_LAX} %s
+// RUN: %swift_driver_plain -sdk "" -### -target x86_64-unknown-linux-gnu -L/foo/ %s | %FileCheck -check-prefix=CHECK-L-LINUX %s
+// RUN: %swift_driver_plain -sdk "" -### -target x86_64-unknown-linux-gnu -L/foo/ %s | %FileCheck -check-prefix=CHECK-L-LINUX_LAX %s
 // CHECK-L-LINUX: # LD_LIBRARY_PATH={{/foo/:[^:]+/lib/swift/linux$}}
 // CHECK-L-LINUX_LAX: # LD_LIBRARY_PATH={{/foo/:[^:]+/lib/swift/linux($|:)}}
 
-// RUN: env LD_LIBRARY_PATH=/abc/ %swift_driver_plain -### -target x86_64-unknown-linux-gnu -L/foo/ -L/bar/ %s | %FileCheck -check-prefix=CHECK-LINUX-COMPLEX${LD_LIBRARY_PATH+_LAX} %s
+// RUN: env LD_LIBRARY_PATH=/abc/ %swift_driver_plain -### -target x86_64-unknown-linux-gnu -L/foo/ -L/bar/ %s | %FileCheck -check-prefix=CHECK-LINUX-COMPLEX %s
+// RUN: env LD_LIBRARY_PATH=/abc/ %swift_driver_plain -### -target x86_64-unknown-linux-gnu -L/foo/ -L/bar/ %s | %FileCheck -check-prefix=CHECK-LINUX-COMPLEX_LAX %s
 // CHECK-LINUX-COMPLEX: # LD_LIBRARY_PATH={{/foo/:/bar/:[^:]+/lib/swift/linux:/abc/$}}
 // CHECK-LINUX-COMPLEX_LAX: # LD_LIBRARY_PATH={{/foo/:/bar/:[^:]+/lib/swift/linux:/abc/($|:)}}