CppTools: "pre-compiled" -> "precompiled"

Change-Id: Ia4207747a3659fc05013d22b63feb2b17b1dec81
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>

doc/src/editors/creator-clang-codemodel.qdoc

@@ -133,8 +133,8 @@
             language files if you develop mainly using C, select the
             \uicontrol {Interpret ambiguous headers as C headers} check box.
 
-        \li To process pre-compiled headers, deselect the
+        \li To process precompiled headers, deselect the
-            \uicontrol {Ignore pre-compiled headers} check box.
+            \uicontrol {Ignore precompiled headers} check box.
 
         \li To avoid out-of-memory crashes caused by indexing huge source files
             that are typically auto-generated by scripts or code, the size of

src/plugins/cpptools/cppcodemodelsettingspage.ui

@@ -30,10 +30,10 @@
       <item>
        <widget class="QCheckBox" name="ignorePCHCheckBox">
         <property name="toolTip">
-         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;When pre-compiled headers are not ignored, the parsing for code completion and semantic highlighting will process the pre-compiled header before processing any file.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;When precompiled headers are not ignored, the parsing for code completion and semantic highlighting will process the precompiled header before processing any file.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
         </property>
         <property name="text">
-         <string>Ignore pre-compiled headers</string>
+         <string>Ignore precompiled headers</string>
         </property>
        </widget>
       </item>