[Test] Add -module-cache-path flag to the APIJSON tests

The APIJSON tests used the default module cache and generated different
modules under the same name. This lead some tests to load a different
module than intended. This was made more easily detectable with the lock
on the swiftmodules instead of the swiftinterfaces.

Author: xymus

test/APIJSON/access.swift

@@ -5,7 +5,7 @@
 // REQUIRES: objc_interop, OS=macosx
 // RUN: %empty-directory(%t)
 // RUN: cp %s %t/MyModule.swiftinterface
-// RUN: %target-swift-api-extract -target x86_64-apple-macos11.0 -o - -pretty-print %t/MyModule.swiftinterface -module-name MyModule | %FileCheck %s
+// RUN: %target-swift-api-extract -target x86_64-apple-macos11.0 -o - -pretty-print %t/MyModule.swiftinterface -module-name MyModule -module-cache-path %t | %FileCheck %s
 
 public func publicFunction()
 internal func internalFunction()

test/APIJSON/apigen.swift

@@ -1,7 +1,7 @@
 // REQUIRES: objc_interop, OS=macosx
 // RUN: %empty-directory(%t)
-// RUN: %target-swift-frontend %s -typecheck -emit-module-interface-path %t/MyModule.swiftinterface -enable-library-evolution -module-name MyModule -swift-version 5
-// RUN: %target-swift-api-extract -o - -pretty-print %t/MyModule.swiftinterface -module-name MyModule | %FileCheck %s
+// RUN: %target-swift-frontend %s -typecheck -emit-module-interface-path %t/MyModule.swiftinterface -enable-library-evolution -module-name MyModule -swift-version 5 
+// RUN: %target-swift-api-extract -o - -pretty-print %t/MyModule.swiftinterface -module-name MyModule -module-cache-path %t | %FileCheck %s
 
 import Foundation
 

test/APIJSON/non-objc-class.swift

@@ -1,7 +1,7 @@
 // REQUIRES: objc_interop, OS=macosx
 // RUN: %empty-directory(%t)
 // RUN: %target-swift-frontend %s -typecheck -emit-module-interface-path %t/MyModule.swiftinterface -enable-library-evolution -module-name MyModule -swift-version 5
-// RUN: %target-swift-api-extract -o - -pretty-print %t/MyModule.swiftinterface -module-name MyModule | %FileCheck %s
+// RUN: %target-swift-api-extract -o - -pretty-print %t/MyModule.swiftinterface -module-name MyModule -module-cache-path %t | %FileCheck %s
 
 import Foundation
 

test/APIJSON/spi.swift

@@ -1,7 +1,7 @@
 // REQUIRES: objc_interop, OS=macosx
 // RUN: %empty-directory(%t)
 // RUN: %target-swift-frontend %s -typecheck -emit-module-interface-path %t/MyModule.swiftinterface -enable-library-evolution -module-name MyModule -swift-version 5
-// RUN: %target-swift-api-extract -o - -pretty-print %t/MyModule.swiftinterface -module-name MyModule | %FileCheck %s
+// RUN: %target-swift-api-extract -o - -pretty-print %t/MyModule.swiftinterface -module-name MyModule -module-cache-path %t | %FileCheck %s
 
 import Foundation
 

test/APIJSON/struct.swift

@@ -1,7 +1,7 @@
 // REQUIRES: objc_interop, OS=macosx
 // RUN: %empty-directory(%t)
 // RUN: %target-swift-frontend %s -typecheck -emit-module-interface-path %t/MyModule.swiftinterface -enable-library-evolution -module-name MyModule -swift-version 5
-// RUN: %target-swift-api-extract -o - -pretty-print %t/MyModule.swiftinterface -module-name MyModule | %FileCheck %s
+// RUN: %target-swift-api-extract -o - -pretty-print %t/MyModule.swiftinterface -module-name MyModule -module-cache-path %t | %FileCheck %s
 
 // Struct has no objc data.
 @available(macOS 10.13, *)