Cleanup: rename specials -> context_menu

In keeping with convention to match code & UI naming.

- No user visible changes.
- Include 'menu' in the name since context is an overloaded term.
- While a few of these are panels, from a user perspective they are
  still context menus.

release/scripts/startup/bl_ui/space_node.py

@@ -312,7 +312,7 @@ class NODE_PT_node_color_presets(PresetMenu):
     preset_add_operator = "node.node_color_preset_add"
 
 
-class NODE_MT_node_color_specials(Menu):
+class NODE_MT_node_color_context_menu(Menu):
     bl_label = "Node Color Specials"
 
     def draw(self, context):
@@ -321,7 +321,7 @@ class NODE_MT_node_color_specials(Menu):
         layout.operator("node.node_copy_color", icon='COPY_ID')
 
 
-class NODE_MT_specials(Menu):
+class NODE_MT_context_menu(Menu):
     bl_label = "Node Context Menu"
 
     def draw(self, context):
@@ -418,7 +418,7 @@ class NODE_PT_active_node_color(Panel):
 
         row = layout.row()
         row.prop(node, "color", text="")
-        row.menu("NODE_MT_node_color_specials", text="", icon='DOWNARROW_HLT')
+        row.menu("NODE_MT_node_color_context_menu", text="", icon='DOWNARROW_HLT')
 
 
 class NODE_PT_active_node_properties(Panel):
@@ -623,8 +623,8 @@ classes = (
     NODE_MT_select,
     NODE_MT_node,
     NODE_PT_node_color_presets,
-    NODE_MT_node_color_specials,
-    NODE_MT_specials,
+    NODE_MT_node_color_context_menu,
+    NODE_MT_context_menu,
     NODE_PT_active_node_generic,
     NODE_PT_active_node_color,
     NODE_PT_active_node_properties,