Refactor handling of --version flags; add --analyze

Move handling of certain language-specific flags out of
compiler_vm_server.pl and into their own language modules.

Add support for clang --analyze.

Java now understands -version.

modules/compiler_vm/compiler_vm_server.pl

@@ -126,13 +126,7 @@ sub interpret {
 
   $mod->preprocess;
 
-  if($cmdline =~ m/-?-version/) {
+  $mod->postprocess if not $mod->{error} and not $mod->{done};
-    # cmdline contained version request, so don't postprocess and just return the version output
-    $mod->{output} =~ s/\s+\(Ubuntu.*-\d+ubuntu\d+\)//;
-    return $mod->{output};
-  }
-
-  $mod->postprocess if not $mod->{error};
 
   if (exists $mod->{no_output} or not length $mod->{output}) {
     $mod->{output} .= "\n" if length $mod->{output};

modules/compiler_vm/languages/server/_c_base.pm

@@ -6,6 +6,15 @@ use strict;
 package _c_base; 
 use parent '_default';
 
+sub preprocess {
+  my $self = shift;
+  $self->SUPER::preprocess;
+
+  if ($self->{cmdline} =~ m/--(?:version|analyze)/) {
+    $self->{done} = 1;
+  }
+}
+
 sub postprocess {
   my $self = shift;
 

modules/compiler_vm/languages/server/java.pm

@@ -6,6 +6,15 @@ use strict;
 package java; 
 use parent '_default';
 
+sub preprocess {
+  my $self = shift;
+  $self->SUPER::preprocess;
+
+  if ($self->{cmdline} =~ m/-version/) {
+    $self->{done} = 1;
+  }
+}
+
 sub postprocess {
   my $self = shift;