Use function icon from the platform after removing 182

#KT-33536 Fixed

idea/idea-analysis/src/org/jetbrains/kotlin/idea/KotlinIcons.java

@@ -16,6 +16,7 @@
 
 package org.jetbrains.kotlin.idea;
 
+import com.intellij.icons.AllIcons;
 import com.intellij.openapi.util.IconLoader;
 import com.intellij.util.PlatformIcons;
 
@@ -35,9 +36,7 @@ public interface KotlinIcons {
     Icon OBJECT = IconLoader.getIcon("/org/jetbrains/kotlin/idea/icons/objectKotlin." + IconExtensionChooser.iconExtension());
     Icon INTERFACE = IconLoader.getIcon("/org/jetbrains/kotlin/idea/icons/interfaceKotlin." + IconExtensionChooser.iconExtension());
     Icon ANNOTATION = IconLoader.getIcon("/org/jetbrains/kotlin/idea/icons/annotationKotlin." + IconExtensionChooser.iconExtension());
-    // BUNCH: 182
-    //todo: Use AllIcons.nodes instead (actually the same icon)
-    Icon FUNCTION = IconLoader.getIcon("/org/jetbrains/kotlin/idea/icons/function." + IconExtensionChooser.iconExtension());
+    Icon FUNCTION = AllIcons.Nodes.Function;
     Icon EXTENSION_FUNCTION = PlatformIcons.FUNCTION_ICON;
     Icon ABSTRACT_EXTENSION_FUNCTION = IconLoader.getIcon("/org/jetbrains/kotlin/idea/icons/abstract_extension_function." + IconExtensionChooser.iconExtension());
     Icon LAMBDA = IconLoader.getIcon("/org/jetbrains/kotlin/idea/icons/lambda." + IconExtensionChooser.iconExtension());

idea/resources/org/jetbrains/kotlin/idea/icons/function.svg

@@ -1,6 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16">
-  <g fill="none" fill-rule="evenodd">
-    <path fill="#F98B9E" fill-opacity=".6" d="M15,8 C15,11.866 11.866,15 8,15 C4.134,15 1,11.866 1,8 C1,4.134 4.134,1 8,1 C11.866,1 15,4.134 15,8"/>
-    <path fill="#231F20" fill-opacity=".7" d="M1,8 L2,8 L2,4 L3.5,4 L3.5,3 L2,3 C1.99687783,2.36169171 1.99509925,2.02835838 1.99466424,2 C1.98704681,1.50341351 2.13289549,1.0728225 2.43221029,0.972167969 C2.91964141,0.808253079 3.56884985,1.02114795 3.68984985,1.06414795 L3.98519897,0.226043701 C3.90948298,0.198825534 3.4559021,0 2.81140137,0 C2.16690063,1.40512602e-16 1.81677246,0.0614013672 1.4818929,0.388793945 C1.16513106,0.698473875 1.01614114,1.22015248 1.00124609,2 C1.00039414,2.04460465 0.999980878,2.95274463 1,3 C1.00000736,3.01819872 0.666674031,3.01819872 0,3 L0,3.972 L1,3.972 L1,8 Z" transform="translate(6 4)"/>
-  </g>
-</svg>