Revert "Extract KotlinClassInfo to a separate class"

This reverts commit ec3da62672.

compiler/incremental-compilation-impl/testData/org/jetbrains/kotlin/incremental/classpathDiff/ClasspathChangesComputerTest/KotlinOnly/testFunctionsAndPropertyAccessorsWithJvmNames/src/current-classpath/com/example/SomeClass.kt

@@ -1,20 +0,0 @@
-@file:Suppress("NOTHING_TO_INLINE")
-
-package com.example
-
-class SomeClass {
-
-    @JvmName("changedFunctionJvmName")
-    fun changedFunction(): Long = 0
-
-    val changedPropertyAccessor: Long
-        @JvmName("changedPropertyAccessorJvmName")
-        get() = 0
-}
-
-@JvmName("changedInlineFunctionJvmName")
-inline fun changedInlineFunction(): Long = 0
-
-inline val changedInlinePropertyAccessor: Long
-    @JvmName("changedInlinePropertyAccessorJvmName")
-    get() = 0

compiler/incremental-compilation-impl/testData/org/jetbrains/kotlin/incremental/classpathDiff/ClasspathChangesComputerTest/KotlinOnly/testFunctionsAndPropertyAccessorsWithJvmNames/src/previous-classpath/com/example/SomeClass.kt

@@ -1,20 +0,0 @@
-@file:Suppress("NOTHING_TO_INLINE")
-
-package com.example
-
-class SomeClass {
-
-    @JvmName("changedFunctionJvmName")
-    fun changedFunction(): Int = 0
-
-    val changedPropertyAccessor: Int
-        @JvmName("changedPropertyAccessorJvmName")
-        get() = 0
-}
-
-@JvmName("changedInlineFunctionJvmName")
-inline fun changedInlineFunction(): Int = 0
-
-inline val changedInlinePropertyAccessor: Int
-    @JvmName("changedInlinePropertyAccessorJvmName")
-    get() = 0