[WIP] Add Compiler Smoke Tests for (suspend) main methods

This commit ports the (parameterless) main integration tests in
`CompilerSmokeTest` to the IR backend. It also includes a simple
suspend main test.

The advanced ones (like `helloAppSuspendParameterlessMain`) are
currently blocked by pending changes to capturing suspend lambdas,
which are underway.

compiler/tests/org/jetbrains/kotlin/integration/CompilerSmokeTest.java

@@ -29,6 +29,13 @@ public class CompilerSmokeTest extends CompilerSmokeTestBase {
         run("hello.run", "-cp", jar, "Hello.HelloKt");
     }
 
+    public void testHelloAppIR() throws Exception {
+        String jar = tmpdir.getAbsolutePath() + File.separator + "hello.jar";
+
+        assertEquals("compilation failed", 0, runCompiler("hello.compile", "-include-runtime", "-Xuse-ir", "hello.kt", "-d", jar));
+        run("hello.run", "-cp", jar, "Hello.HelloKt");
+    }
+
     public void testHelloAppFQMain() throws Exception {
         String jar = tmpdir.getAbsolutePath() + File.separator + "hello.jar";
 
@@ -36,6 +43,13 @@ public class CompilerSmokeTest extends CompilerSmokeTestBase {
         run("hello.run", "-cp", jar, "Hello.HelloKt");
     }
 
+    public void testHelloAppFQMainIR() throws Exception {
+        String jar = tmpdir.getAbsolutePath() + File.separator + "hello.jar";
+
+        assertEquals("compilation failed", 0, runCompiler("hello.compile", "-include-runtime", "-Xuse-ir", "hello.kt", "-d", jar));
+        run("hello.run", "-cp", jar, "Hello.HelloKt");
+    }
+
     public void testHelloAppVarargMain() throws Exception {
         String jar = tmpdir.getAbsolutePath() + File.separator + "hello.jar";
 
@@ -43,6 +57,13 @@ public class CompilerSmokeTest extends CompilerSmokeTestBase {
         run("hello.run", "-cp", jar, "Hello.HelloKt");
     }
 
+    public void testHelloAppVarargMainIR() throws Exception {
+        String jar = tmpdir.getAbsolutePath() + File.separator + "hello.jar";
+
+        assertEquals("compilation failed", 0, runCompiler("hello.compile", "-include-runtime", "-Xuse-ir", "hello.kt", "-d", jar));
+        run("hello.run", "-cp", jar, "Hello.HelloKt");
+    }
+
     public void testHelloAppSuspendMain() throws Exception {
         String jar = tmpdir.getAbsolutePath() + File.separator + "hello.jar";
 
@@ -57,6 +78,13 @@ public class CompilerSmokeTest extends CompilerSmokeTestBase {
         run("hello.run", "-cp", jar, "Hello.Foo", "O", "K");
     }
 
+    public void testHelloAppSuspendMainInMultifileIR() throws Exception {
+        String jar = tmpdir.getAbsolutePath() + File.separator + "hello.jar";
+
+        assertEquals("compilation failed", 0, runCompiler("hello.compile", "-include-runtime", "-Xuse-ir", "hello.kt", "-d", jar));
+        run("hello.run", "-cp", jar, "Hello.Foo", "O", "K");
+    }
+
     public void testHelloAppParameterlessMain() throws Exception {
         String jar = tmpdir.getAbsolutePath() + File.separator + "hello.jar";
 
@@ -64,6 +92,13 @@ public class CompilerSmokeTest extends CompilerSmokeTestBase {
         run("hello.run", "-cp", jar, "Hello.HelloKt");
     }
 
+    public void testHelloAppParameterlessMainIR() throws Exception {
+        String jar = tmpdir.getAbsolutePath() + File.separator + "hello.jar";
+
+        assertEquals("compilation failed", 0, runCompiler("hello.compile", "-include-runtime", "-Xuse-ir", "hello.kt", "-d", jar));
+        run("hello.run", "-cp", jar, "Hello.HelloKt");
+    }
+
     public void testHelloAppOldAndParameterlessMain() throws Exception {
         String jar = tmpdir.getAbsolutePath() + File.separator + "hello.jar";
 
@@ -71,6 +106,13 @@ public class CompilerSmokeTest extends CompilerSmokeTestBase {
         run("hello.run", "-cp", jar, "Hello.HelloKt");
     }
 
+    public void testHelloAppOldAndParameterlessMainIR() throws Exception {
+        String jar = tmpdir.getAbsolutePath() + File.separator + "hello.jar";
+
+        assertEquals("compilation failed", 0, runCompiler("hello.compile", "-include-runtime", "-Xuse-ir", "hello.kt", "-d", jar));
+        run("hello.run", "-cp", jar, "Hello.HelloKt");
+    }
+
     public void testHelloAppSuspendParameterlessMain() throws Exception {
         String jar = tmpdir.getAbsolutePath() + File.separator + "hello.jar";
 
@@ -78,6 +120,20 @@ public class CompilerSmokeTest extends CompilerSmokeTestBase {
         run("hello.run", "-cp", jar, "Hello.HelloKt", "O", "K");
     }
 
+    public void testHelloAppSuspendParameterlessMainIR() throws Exception {
+        String jar = tmpdir.getAbsolutePath() + File.separator + "hello.jar";
+
+        assertEquals("compilation failed", 0, runCompiler("hello.compile", "-include-runtime", "-Xuse-ir", "hello.kt", "-d", jar));
+        run("hello.run", "-cp", jar, "Hello.HelloKt", "O", "K");
+    }
+
+    public void testSimplestSuspendMainIR() throws Exception {
+        String jar = tmpdir.getAbsolutePath() + File.separator + "hello.jar";
+
+        assertEquals("compilation failed", 0, runCompiler("hello.compile", "-include-runtime", "-Xuse-ir", "hello.kt", "-d", jar));
+        run("hello.run", "-cp", jar, "Hello.HelloKt", "O", "K");
+    }
+
     public void testCompilationFailed() throws Exception {
         String jar = tmpdir.getAbsolutePath() + File.separator + "smoke.jar";