gradle-plugin, tests: Escape windows path separator in konan.home

tools/kotlin-native-gradle-plugin/build.gradle

@@ -63,9 +63,9 @@ dependencies {
 }
 
 test {
-    dependsOn ':dist'
+    dependsOn ':cross_dist'
     //testLogging.showStandardStreams = true
-    systemProperty("konan.home", rootProject.file('dist'))
+    systemProperty("konan.home", rootProject.file('dist').canonicalPath)
 }
 
 jar {

tools/kotlin-native-gradle-plugin/src/test/groovy/org/jetbrains/kotlin/gradle/plugin/test/IncrementalSpecification.groovy

@@ -185,7 +185,7 @@ class IncrementalSpecification extends Specification {
         }
         def results = buildTwice(project) { KonanInteropProject it ->
             def manifest = it.generateSrcFile('manifest', "#some manifest file")
-            it.buildFile.append("konanArtifacts['main'].manifest '${manifest.canonicalPath}'")
+            it.buildFile.append("konanArtifacts['main'].manifest '${manifest.canonicalPath.replace('\\', '\\\\')}'")
         }
 
         then:
@@ -198,7 +198,7 @@ class IncrementalSpecification extends Specification {
         def project = KonanInteropProject.createEmpty(tmpFolder) { KonanInteropProject it ->
             it.generateSrcFile('main.kt')
             manifest = it.generateSrcFile('manifest', "#some manifest file\n")
-            it.buildFile.append("konanArtifacts['main'].manifest '${manifest.canonicalPath}'")
+            it.buildFile.append("konanArtifacts['main'].manifest '${manifest.canonicalPath.replace('\\', '\\\\')}'")
         }
         def results = buildTwice(project) { KonanInteropProject it ->
             manifest.append("#something else\n")
@@ -232,7 +232,7 @@ class IncrementalSpecification extends Specification {
         project.generateSrcFile('main.kt')
         def defFile = project.generateDefFile("foo.def", "#some content")
         def results = buildTwice(project) { KonanInteropProject it ->
-            it.buildFile.append("konanInterop['stdio'].defFile file('${defFile.canonicalPath}')\n")
+            it.buildFile.append("konanInterop['stdio'].defFile file('${defFile.canonicalPath.replace('\\', '\\\\')}')\n")
         }
 
         then:
@@ -245,7 +245,7 @@ class IncrementalSpecification extends Specification {
         project.generateSrcFile('main.kt')
         def header = project.generateSrcFile('header.h', "#define CONST 1")
         def results = buildTwice(project) { KonanInteropProject it ->
-            it.buildFile.append("konanInterop['stdio'].headers '${header.canonicalPath}'\n")
+            it.buildFile.append("konanInterop['stdio'].headers '${header.canonicalPath.replace('\\', '\\\\')}'\n")
         }
 
         then:
@@ -294,7 +294,7 @@ class IncrementalSpecification extends Specification {
         recompilationAndInteropProcessingHappened(*results)
     }
 
-    @IgnoreIf({ System.getProperty('os.name').contains('windows') })
+    @IgnoreIf(System.getProperty('os.name').contains('windows'))
     def 'target change should cause recompilation and interop reprocessing'() {
         when:
         def newTarget

tools/kotlin-native-gradle-plugin/src/test/groovy/org/jetbrains/kotlin/gradle/plugin/test/KonanProject.groovy

@@ -9,7 +9,7 @@ class KonanProject {
 
     File getProjectDirRoot() { return projectDir.root }
 
-    String konanHome = System.getProperty("konan.home") ?: { throw new IllegalStateException("konan.home isn't specified") }()
+    String konanHome
 
     File         buildFile
     File         propertiesFile
@@ -26,6 +26,16 @@ class KonanProject {
 
     protected KonanProject(TemporaryFolder projectDir) {
         this.projectDir = projectDir
+        def konanHome = System.getProperty("konan.home")
+        if (konanHome == null) {
+            throw new IllegalStateException("konan.home isn't specified")
+        }
+        def konanHomeDir = new File(konanHome)
+        if (!konanHomeDir.exists() || !konanHomeDir.directory) {
+            throw new IllegalStateException("konan.home doesn't exist or is not a directory: $konanHomeDir.canonicalPath")
+        }
+        // Escape windows path separator
+        this.konanHome = konanHomeDir.canonicalPath.replace('\\', '\\\\')
     }
 
     void generateFolders() {