[JVM_IR] Remove line numbers from delegated member functions.

This fixes smart step into for delegated member functions.
Additionally, we align on the string "memberFunctionName(...)"
for expression non-null checks for both JVM_IR and JVM
backends.

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/accidentalOverrides/delegatedFunctionOverriddenByProperty_ir.kt

@@ -7,4 +7,4 @@ interface D {
     val x: Int
 }
 
-class C(d: D) : D by <!ACCIDENTAL_OVERRIDE!>d<!>, B
+class <!ACCIDENTAL_OVERRIDE!>C(d: D)<!> : D by d, B

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/erasure/delegateToTwoTraits_ir.kt

@@ -9,7 +9,7 @@ interface Bar<T> {
     fun foo(l: List<T>)
 }
 
-class Baz(f: Foo<String>, b: Bar<Int>) :
-    Foo<String> by <!CONFLICTING_JVM_DECLARATIONS!>f<!>,
-    Bar<Int> by <!CONFLICTING_JVM_DECLARATIONS!>b<!> {
+class <!CONFLICTING_JVM_DECLARATIONS!>Baz(f: Foo<String>, b: Bar<Int>)<!> :
+    Foo<String> by f,
+    Bar<Int> by b {
 }

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/erasure/delegationAndOwnMethod_ir.kt

@@ -5,6 +5,6 @@ interface Foo<T> {
     fun foo(l: List<T>)
 }
 
-class Bar(f: Foo<String>): Foo<String> by <!CONFLICTING_JVM_DECLARATIONS!>f<!> {
+class <!CONFLICTING_JVM_DECLARATIONS!>Bar(f: Foo<String>)<!>: Foo<String> by f {
     <!CONFLICTING_JVM_DECLARATIONS!>fun foo(l: List<Int>)<!> {}
 }

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/erasure/delegationToTraitImplAndOwnMethod_ir.kt

@@ -7,7 +7,7 @@ interface Foo<T> {
     }
 }
 
-class Bar(f: Foo<String>): Foo<String> by <!CONFLICTING_JVM_DECLARATIONS!>f<!> {
+class <!CONFLICTING_JVM_DECLARATIONS!>Bar(f: Foo<String>)<!>: Foo<String> by f {
     <!CONFLICTING_JVM_DECLARATIONS!>fun foo(l: List<Int>)<!> {}
 }
 

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/erasure/superTraitAndDelegationToTraitImpl_ir.kt

@@ -9,6 +9,6 @@ interface B {
     fun foo(l: List<Int>) {}
 }
 
-class C(f: A<String>): A<String> by <!ACCIDENTAL_OVERRIDE!>f<!>, B
+class <!ACCIDENTAL_OVERRIDE!>C(f: A<String>)<!>: A<String> by f, B
 
 <!DELEGATED_MEMBER_HIDES_SUPERTYPE_OVERRIDE!>class D<!>(f: A<Int>): A<Int> by f, B