[IR] Turned off IR validation for everything but our tests

kotlin-native/backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2Native.kt

@@ -183,6 +183,7 @@ class K2Native : CLICompiler<K2NativeCompilerArguments>() {
 
                 if (arguments.verifyCompiler != null)
                     put(VERIFY_COMPILER, arguments.verifyCompiler == "true")
+                put(VERIFY_IR, arguments.verifyIr)
                 put(VERIFY_BITCODE, arguments.verifyBitCode)
 
                 put(ENABLED_PHASES,

kotlin-native/backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2NativeCompilerArguments.kt

@@ -225,6 +225,9 @@ class K2NativeCompilerArguments : CommonCompilerArguments() {
     @Argument(value = "-Xverify-bitcode", deprecatedName = "--verify_bitcode", description = "Verify llvm bitcode after each method")
     var verifyBitCode: Boolean = false
 
+    @Argument(value = "-Xverify-ir", description = "Verify IR")
+    var verifyIr: Boolean = false
+
     @Argument(value = "-Xverify-compiler", description = "Verify compiler")
     var verifyCompiler: String? = null