FIR IDE: Start IDEA FIR plugin

idea/idea-frontend-fir/build.gradle.kts

@@ -0,0 +1,37 @@
+plugins {
+    kotlin("jvm")
+    id("jps-compatible")
+}
+
+dependencies {
+    compileOnly(project(":compiler:psi"))
+    compileOnly(project(":idea:idea-frontend-independent"))
+    compileOnly(project(":idea:idea-core"))
+    compileOnly(project(":compiler:fir:fir2ir"))
+    compileOnly(project(":compiler:fir:resolve"))
+    compileOnly(project(":compiler:fir:checkers"))
+    compileOnly(project(":compiler:fir:java"))
+    compileOnly(project(":compiler:fir:jvm"))
+    compileOnly(intellijCoreDep())
+    compileOnly(intellijDep())
+
+    Platform[191].orLower {
+        compileOnly(intellijDep()) { includeJars("java-api", "java-impl") }
+    }
+
+    Platform[192].orHigher {
+        compileOnly(intellijPluginDep("java")) { includeJars("java-api", "java-impl") }
+    }
+}
+
+sourceSets {
+    "main" { projectDefault() }
+    "test" { projectDefault() }
+}
+
+testsJar()
+
+projectTest {
+    dependsOn(":dist")
+    workingDir = rootDir
+}

prepare/idea-plugin/build.gradle.kts

@@ -94,6 +94,7 @@ val projectsToShadow by extra(listOf(
         ":idea:idea-git",
         ":idea:idea-jps-common",
         ":idea:idea-frontend-independent",
+        ":idea:idea-frontend-fir",
         *if (Ide.IJ())
             arrayOf(
                 ":idea:idea-maven",

settings.gradle

@@ -184,6 +184,7 @@ include ":kotlin-build-common",
         ":idea:jvm-debugger:jvm-debugger-test",
         ":idea:scripting-support",
         ":idea:idea-frontend-independent",
+        ":idea:idea-frontend-fir",
         ":libraries:tools:new-project-wizard",
         ":idea:idea-new-project-wizard",
         ":libraries:tools:new-project-wizard:new-project-wizard-cli",