Add RunCMake.Syntax test to cover argument parsing

Test basic unquoted and quoted argument parsing cases including failure
on an unterminated string and an unterminated command invocation.  Also
cover arguments not separated by any spaces, which is accidentally
allowed by the current parser.

Tests/RunCMake/CMakeLists.txt

@@ -85,6 +85,7 @@ if(NOT WIN32)
   endif()
 endif()
 add_RunCMake_test(CompatibleInterface)
+add_RunCMake_test(Syntax)
 
 add_RunCMake_test(add_dependencies)
 add_RunCMake_test(build_command)

Tests/RunCMake/Syntax/CMakeLists.txt

@@ -0,0 +1,3 @@
+cmake_minimum_required(VERSION 2.8.9)
+project(${RunCMake_TEST} NONE)
+include(${RunCMake_TEST}.cmake)

Tests/RunCMake/Syntax/RunCMakeTest.cmake

@@ -0,0 +1,9 @@
+include(RunCMake)
+
+run_cmake(String0)
+run_cmake(String1)
+run_cmake(StringNoSpace)
+run_cmake(Unquoted0)
+run_cmake(Unquoted1)
+run_cmake(UnterminatedCall1)
+run_cmake(UnterminatedString)

Tests/RunCMake/Syntax/String0-stderr.txt

@@ -0,0 +1 @@
+^1 2;3 4$

Tests/RunCMake/Syntax/String0.cmake

@@ -0,0 +1,2 @@
+set(var 2 3)
+message("1 ${var} 4")

Tests/RunCMake/Syntax/String1-stderr.txt

@@ -0,0 +1,3 @@
+^
+  1 \${var} 4
+ $

Tests/RunCMake/Syntax/String1.cmake

@@ -0,0 +1,3 @@
+message("
+  1 \${var} 4
+ ")

Tests/RunCMake/Syntax/StringNoSpace-stderr.txt

@@ -0,0 +1,3 @@
+^\[1 \${var} \\n 4\]
+\[x\]
+\[y\]$

Tests/RunCMake/Syntax/StringNoSpace.cmake

@@ -0,0 +1,4 @@
+# Quoted arguments may be immediately followed by another argument.
+foreach(x "1 \${var} \\n 4""x"y)
+  message("[${x}]")
+endforeach()

Tests/RunCMake/Syntax/Unquoted0-stderr.txt

@@ -0,0 +1 @@
+^1234$

Tests/RunCMake/Syntax/Unquoted0.cmake

@@ -0,0 +1,2 @@
+set(var 2 3)
+message(1 ${var} 4)

Tests/RunCMake/Syntax/Unquoted1-stderr.txt

@@ -0,0 +1 @@
+^\[\]\[=\]\[\$\$\(MV\)-DSTR=" \[="\[;\]$

Tests/RunCMake/Syntax/Unquoted1.cmake

@@ -0,0 +1 @@
+message([] [=] [$ $(MV) -DSTR=" [=" [;])

Tests/RunCMake/Syntax/UnterminatedCall1-result.txt

@@ -0,0 +1 @@
+1

Tests/RunCMake/Syntax/UnterminatedCall1-stderr.txt

@@ -0,0 +1,7 @@
+CMake Error: Error in cmake code at
+.*/Syntax/UnterminatedCall1.cmake:2:
+Parse error.  Function missing ending "\)".  End of file reached.
+CMake Error at CMakeLists.txt:3 \(include\):
+  include could not find load file:
+
+    UnterminatedCall1.cmake

Tests/RunCMake/Syntax/UnterminatedCall1.cmake

@@ -0,0 +1 @@
+message(

Tests/RunCMake/Syntax/UnterminatedString-result.txt

@@ -0,0 +1 @@
+1

Tests/RunCMake/Syntax/UnterminatedString-stderr.txt

@@ -0,0 +1,8 @@
+CMake Error: Error in cmake code at
+.*/Syntax/UnterminatedString.cmake:2:
+Parse error.  Function missing ending "\)".  Instead found unterminated string with text "\)
+".
+CMake Error at CMakeLists.txt:3 \(include\):
+  include could not find load file:
+
+    UnterminatedString.cmake$

Tests/RunCMake/Syntax/UnterminatedString.cmake

@@ -0,0 +1 @@
+set(var ")