Move declaration of ClearError to stats.h

ClearError is defined in stats.c, so the declaration goes in the
appropriate header.
The function ClearError conflates resetting multiple error states (of
the interpreter/executor and the scanner), so this will need to be
fixed.

src/read.c

@@ -43,6 +43,7 @@
 #include <src/vars.h>                   /* variables */
 
 #include <src/bool.h>
+#include <src/stats.h>                  /* for ClearError */
 
 #include <assert.h>
 

src/scanner.h

@@ -398,13 +398,6 @@ extern void Match (
             TypSymbolSet        skipto );
 
 
-/****************************************************************************
-**
-*F  ClearError()  . . . . . . . . . . . . . .  reset execution and error flag
-*/
-extern void ClearError ( void );
-
-
 /****************************************************************************
 **
 *F * * * * * * * * * * * open input/output functions  * * * * * * * * * * * *

src/stats.h

@@ -149,6 +149,18 @@ extern  void            PrintStat (
 extern  void            (* PrintStatFuncs[256] ) ( Stat stat );
 
 
+/****************************************************************************
+ **
+ *F  ClearError()  . . . . . . . . . . . . . .  reset execution and error flag
+ *
+ * FIXME: This function accesses NrError which is state of the scanner, so
+ *        scanner should have an API for this.
+ * 
+ */
+
+extern void ClearError ( void );
+
+
 /****************************************************************************
 **
 *F * * * * * * * * * * * * * initialize package * * * * * * * * * * * * * * *

src/streams.c

@@ -51,6 +51,7 @@
 
 #include <src/streams.h>                /* streams package */
 
+#include <src/stats.h>                  /* for ClearError() */
 
 
 #include <src/vars.h>                   /* STATE(BottomLVars) for execution contexts */