FIR: Fix test data after making LHS of assignment an expression

KT-54648

compiler/fir/analysis-tests/testData/resolveWithStdlib/assignmentWithWrongLhs.fir.txt

@@ -0,0 +1,24 @@
+FILE: assignmentWithWrongLhs.kt
+    public final fun foo(): R|kotlin/Int| {
+        ^foo Int(1)
+    }
+    public final fun test(): R|kotlin/Unit| {
+        R|/foo|() = Int(1)
+        R|/foo|().R|kotlin/Int.toString|() = Int(1)
+        when () {
+            Boolean(true) ->  {
+                R|/foo|()
+            }
+            else ->  {
+                Int(1)
+            }
+        }
+         = String()
+        R|kotlin/run|<R|kotlin/Unit|>(<L> = run@fun <anonymous>(): R|kotlin/Unit| <inline=Inline, kind=EXACTLY_ONCE>  {
+            R|kotlin/io/print|(String(To string)).R|kotlin/also|<R|kotlin/Unit|>(<L> = also@fun <anonymous>(it: R|kotlin/Unit|): R|kotlin/Unit| <inline=Inline, kind=EXACTLY_ONCE>  {
+                R|kotlin/io/print|(R|<local>/it|)
+            }
+            )
+        }
+        ) = Int(1)
+    }

compiler/fir/analysis-tests/testData/resolveWithStdlib/assignmentWithWrongLhs.kt

@@ -0,0 +1,10 @@
+fun foo(): Int = 1
+
+fun test() {
+    <!VARIABLE_EXPECTED!>foo()<!> = 1
+    foo().<!VARIABLE_EXPECTED!>toString()<!> = <!ASSIGNMENT_TYPE_MISMATCH!>1<!>
+    (<!VARIABLE_EXPECTED!>if (true) foo() else 1<!>) = <!ASSIGNMENT_TYPE_MISMATCH!>""<!>
+    <!VARIABLE_EXPECTED!>run {
+        print("To string").also { print(it) }
+    }<!> = <!ASSIGNMENT_TYPE_MISMATCH!>1<!>
+}

compiler/fir/analysis-tests/testData/resolveWithStdlib/hashSet.fir.txt

@@ -18,5 +18,5 @@ FILE: hashSet.kt
     public final fun foo(): R|kotlin/Unit| {
         lvar c: R|kotlin/collections/MutableSet<kotlin/String>?| = Null(null)
         R|<local>/c| = R|java/util/HashSet.HashSet|<R|kotlin/String|>()
-        R|<local>/c|!!.R|/d| = R|/produce|<R|kotlin/String?|>()
+        R|<local>/c|!!.R|/d|<R|kotlin/String|> = R|/produce|<R|kotlin/String?|>()
     }

compiler/fir/analysis-tests/testData/resolveWithStdlib/listPlusAssign.fir.txt

@@ -1,10 +1,10 @@
 FILE: listPlusAssign.kt
     public final fun R|kotlin/collections/List<kotlin/String>|.modify(): R|kotlin/Unit| {
-        <Variable expected># = this@R|/modify|.R|kotlin/collections/plus|<R|kotlin/String|>(String(Alpha))
-        <Variable expected># = this@R|/modify|.R|kotlin/collections/plus|<R|kotlin/String|>(String(Omega))
+        this@R|/modify| = this@R|/modify|.R|kotlin/collections/plus|<R|kotlin/String|>(String(Alpha))
+        this@R|/modify| = this@R|/modify|.R|kotlin/collections/plus|<R|kotlin/String|>(String(Omega))
     }
     public final fun R|kotlin/Any|.modify(): R|kotlin/Unit| {
-        <Variable expected># = (this@R|/modify| as R|kotlin/collections/List<kotlin/Int>|).R|kotlin/collections/plus|<R|kotlin/Int|>(Int(42))
+        (this@R|/modify| as R|kotlin/collections/List<kotlin/Int>|) = (this@R|/modify| as R|kotlin/collections/List<kotlin/Int>|).R|kotlin/collections/plus|<R|kotlin/Int|>(Int(42))
     }
     public final operator fun <T> R|kotlin/collections/Set<T>|.plusAssign(x: R|T|): R|kotlin/Unit| {
     }

compiler/fir/analysis-tests/testData/resolveWithStdlib/listPlusAssign.kt

@@ -1,8 +1,8 @@
 // COMPARE_WITH_LIGHT_TREE
 
 fun List<String>.modify() {
-    <!VARIABLE_EXPECTED{PSI}!>this<!> += "Alpha"
-    <!VARIABLE_EXPECTED{PSI}!>this<!> += "Omega"
+    <!VARIABLE_EXPECTED!>this<!> += "Alpha"
+    <!VARIABLE_EXPECTED!>this<!> += "Omega"
 }
 
 fun Any.modify() {