Add intention to convert top level val with object expression to object declaration (#974)

* Add intention to convert top level val with object expression to object
Fixes #KT-14137

* fix intention description

idea/testData/intentions/valToObject/.intention

@@ -0,0 +1 @@
+org.jetbrains.kotlin.idea.intentions.ValToObjectIntention

idea/testData/intentions/valToObject/annotations.kt

@@ -0,0 +1,10 @@
+// IS_APPLICABLE: false
+
+interface B {
+}
+
+annotation class Ann
+
+@Ann
+val <caret>a = object : B {
+}

idea/testData/intentions/valToObject/callableReference.kt

@@ -0,0 +1,11 @@
+// IS_APPLICABLE: false
+
+interface B {
+}
+
+val <caret>a = object : B {
+}
+
+fun foo() {
+    val ref = ::a
+}

idea/testData/intentions/valToObject/getter.kt

@@ -0,0 +1,8 @@
+// IS_APPLICABLE: false
+
+interface B {
+}
+
+val <caret>a = object : B {
+}
+    get() = field

idea/testData/intentions/valToObject/nonTopLevel.kt

@@ -0,0 +1,9 @@
+// IS_APPLICABLE: false
+
+interface B {
+}
+
+class Foo {
+    val <caret>a = object : B {
+    }
+}

idea/testData/intentions/valToObject/simple.kt

@@ -0,0 +1,7 @@
+interface B {
+}
+
+val <caret>a = object : B {
+}
+
+val c = a

idea/testData/intentions/valToObject/simple.kt.after

@@ -0,0 +1,7 @@
+interface B {
+}
+
+object a<caret> : B {
+}
+
+val c = a

idea/testData/intentions/valToObject/var.kt

@@ -0,0 +1,7 @@
+// IS_APPLICABLE: false
+
+interface B {
+}
+
+var <caret>a = object : B {
+}

idea/testData/intentions/valToObject/withJavaUsage.1.java

@@ -0,0 +1,9 @@
+// IS_APPLICABLE: false
+
+import test.WithJavaUsageKt
+
+class A {
+    void b() {
+        WithJavaUsageKt.getA();
+    }
+}

idea/testData/intentions/valToObject/withJavaUsage.kt

@@ -0,0 +1,9 @@
+// IS_APPLICABLE: false
+
+package test
+
+interface B {
+}
+
+val <caret>a = object : B {
+}