Explicitly link to XCTest in test helper target

rdar://72429875

Author: jakepetroules

llbuild.xcodeproj/project.pbxproj

@@ -65,6 +65,7 @@
 /* End PBXAggregateTarget section */
 
 /* Begin PBXBuildFile section */
+		1420ADE4258C2BE100324AF0 /* XCTest.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 1420ADE3258C2BE100324AF0 /* XCTest.framework */; };
 		14600C9724F6D46F006A15FA /* llbuild-defines.h in Headers */ = {isa = PBXBuildFile; fileRef = 14600C9624F6D464006A15FA /* llbuild-defines.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		14600C9824F6D46F006A15FA /* llbuild-defines.h in Headers */ = {isa = PBXBuildFile; fileRef = 14600C9624F6D464006A15FA /* llbuild-defines.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		14A9859424F63AC100FADB67 /* buildsystem.h in Headers */ = {isa = PBXBuildFile; fileRef = E1192CEC1C49D84500F85890 /* buildsystem.h */; settings = {ATTRIBUTES = (Public, ); }; };
@@ -973,6 +974,7 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
+		1420ADE3258C2BE100324AF0 /* XCTest.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = XCTest.framework; path = Platforms/MacOSX.platform/Developer/Library/Frameworks/XCTest.framework; sourceTree = DEVELOPER_DIR; };
 		14600C9624F6D464006A15FA /* llbuild-defines.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "llbuild-defines.h"; sourceTree = "<group>"; };
 		147018862097909B0079261E /* ui */ = {isa = PBXFileReference; lastKnownFileType = folder; path = ui; sourceTree = "<group>"; };
 		1484D1D620943D2100D3830F /* docs */ = {isa = PBXFileReference; lastKnownFileType = folder; path = docs; sourceTree = "<group>"; };
@@ -1585,6 +1587,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				1420ADE4258C2BE100324AF0 /* XCTest.framework in Frameworks */,
 				E111C153241B269D0086A92D /* llbuild.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -2131,6 +2134,7 @@
 		E13B5E411A00395300EA0405 /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
+				1420ADE3258C2BE100324AF0 /* XCTest.framework */,
 				8CAE684F237B9EE300C82351 /* libncurses.tbd */,
 				E15B6EC61B546A2C00643066 /* libcurses.tbd */,
 				E1E221081A00B82100957481 /* libsqlite3.tbd */,
@@ -5052,7 +5056,6 @@
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 9999;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
-				FRAMEWORK_SEARCH_PATHS = "$(DEVELOPER_SDK_DIR)/../../Developer/Library/Frameworks/";
 				INFOPLIST_FILE = "$(SRCROOT)/unittests/TestSupport/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/Frameworks";
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -5068,7 +5071,6 @@
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 9999;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
-				FRAMEWORK_SEARCH_PATHS = "$(DEVELOPER_SDK_DIR)/../../Developer/Library/Frameworks/";
 				INFOPLIST_FILE = "$(SRCROOT)/unittests/TestSupport/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/Frameworks";
 				PRODUCT_NAME = "$(TARGET_NAME)";