Prevent kotlinc from reading /tmp/build.txt

Pass -Didea.plugins.compatible.build=999.SNAPSHOT to kotlinc and kapt
to prevent it from reading /tmp/build.txt and failing with an obscure
exception:
exception: java.lang.ExceptionInInitializerError
	at com.intellij.openapi.util.BuildNumber.currentVersion(BuildNumber.java:297)
...

Bug: 222162908
Test: m metalava with /tmp/build.txt present
Change-Id: I5faced4a2e94561ce3aa37bfaacf5bd7d988a4f0
diff --git a/java/config/kotlin.go b/java/config/kotlin.go
index 6cb61f3..a83f87f 100644
--- a/java/config/kotlin.go
+++ b/java/config/kotlin.go
@@ -47,4 +47,9 @@
 	pctx.StaticVariable("KotlincSuppressJDK9Warnings", strings.Join([]string{
 		"-J--add-opens=java.base/java.util=ALL-UNNAMED", // https://youtrack.jetbrains.com/issue/KT-43704
 	}, " "))
+
+	pctx.StaticVariable("KotlincGlobalFlags", strings.Join([]string{
+		// b/222162908: prevent kotlinc from reading /tmp/build.txt
+		"-Didea.plugins.compatible.build=999.SNAPSHOT",
+	}, " "))
 }
diff --git a/java/kotlin.go b/java/kotlin.go
index e4f1bc1..3e5cec0 100644
--- a/java/kotlin.go
+++ b/java/kotlin.go
@@ -34,7 +34,8 @@
 			`${config.GenKotlinBuildFileCmd} --classpath "$classpath" --name "$name"` +
 			` --out_dir "$classesDir" --srcs "$out.rsp" --srcs "$srcJarDir/list"` +
 			` $commonSrcFilesArg --out "$kotlinBuildFile" && ` +
-			`${config.KotlincCmd} ${config.KotlincSuppressJDK9Warnings} ${config.JavacHeapFlags} ` +
+			`${config.KotlincCmd} ${config.KotlincGlobalFlags} ` +
+			`${config.KotlincSuppressJDK9Warnings} ${config.JavacHeapFlags} ` +
 			`$kotlincFlags -jvm-target $kotlinJvmTarget -Xbuild-file=$kotlinBuildFile ` +
 			`-kotlin-home $emptyDir && ` +
 			`${config.SoongZipCmd} -jar -o $out -C $classesDir -D $classesDir && ` +
@@ -125,7 +126,8 @@
 			`${config.GenKotlinBuildFileCmd} --classpath "$classpath" --name "$name"` +
 			` --srcs "$out.rsp" --srcs "$srcJarDir/list"` +
 			` $commonSrcFilesArg --out "$kotlinBuildFile" && ` +
-			`${config.KotlincCmd} ${config.KaptSuppressJDK9Warnings} ${config.KotlincSuppressJDK9Warnings} ` +
+			`${config.KotlincCmd} ${config.KotlincGlobalFlags} ` +
+			`${config.KaptSuppressJDK9Warnings} ${config.KotlincSuppressJDK9Warnings} ` +
 			`${config.JavacHeapFlags} $kotlincFlags -Xplugin=${config.KotlinKaptJar} ` +
 			`-P plugin:org.jetbrains.kotlin.kapt3:sources=$kaptDir/sources ` +
 			`-P plugin:org.jetbrains.kotlin.kapt3:classes=$kaptDir/classes ` +