Improve map type repreesentation in Kibana files and docs

Author: carlosdelest

docs/reference/esql/functions/kibana/definition/match.json

@@ -539,8 +539,8 @@ public String toString() {
     public static class MapArgSignature extends ArgSignature {
         private final Map<String, MapEntryArgSignature> mapParams;
 
-        public MapArgSignature(String description, boolean optional, Map<String, MapEntryArgSignature> mapParams) {
-            super("map", new String[] { "map" }, description, optional);
+        public MapArgSignature(String name, String description, boolean optional, Map<String, MapEntryArgSignature> mapParams) {
+            super(name, new String[] { "map" }, description, optional);
             this.mapParams = mapParams;
         }
 
@@ -666,7 +666,7 @@ public static ArgSignature mapParam(MapParam mapParam) {
             MapEntryArgSignature mapArg = new MapEntryArgSignature(param.name(), valueHint, type, param.description());
             params.put(param.name(), mapArg);
         }
-        return new EsqlFunctionRegistry.MapArgSignature(desc, mapParam.optional(), params);
+        return new EsqlFunctionRegistry.MapArgSignature(mapParam.name(), desc, mapParam.optional(), params);
     }
 
     public static ArgSignature paramWithoutAnnotation(String name) {

docs/reference/esql/functions/parameters/match.asciidoc

@@ -24,6 +24,8 @@
 @Retention(RetentionPolicy.RUNTIME)
 @Target(ElementType.PARAMETER)
 public @interface MapParam {
+    String name();
+
     MapParamEntry[] params() default {};
 
     String description() default "";

docs/reference/esql/functions/signature/match.svg

@@ -173,6 +173,7 @@ public Match(
             description = "Value to find in the provided field."
         ) Expression matchQuery,
         @MapParam(
+            name="options",
             params = {
                 @MapParam.MapParamEntry(name = "analyzer", valueHint = { "standard" }, description = "Analyzer used to convert the text in the query value into token."),
                 @MapParam.MapParamEntry(name = "auto_generate_synonyms_phrase_query", valueHint = { "true", "false" }, description = "If true, match phrase queries are automatically created for multi-term synonyms."),

docs/reference/esql/functions/types/match.asciidoc

@@ -69,6 +69,7 @@ public LogWithBaseInMap(
             description = "Numeric expression. If `null`, the function returns `null`."
         ) Expression number,
         @MapParam(
+            name = "options",
             params = { @MapParam.MapParamEntry(name = "base", valueHint = { "2", "2.0" }) },
             description = "Input value. The input is a valid constant map expression.",
             optional = true

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/expression/function/EsqlFunctionRegistry.java

@@ -1209,7 +1209,7 @@ private static void renderKibanaFunctionDefinition(
                     builder.startObject();
                     builder.field("name", arg.name());
                     if (arg.mapArg()) {
-                        builder.field("type", "map");
+                        builder.field("type", "function named parameters");
                         builder.field(
                             "mapParams",
                             arg.mapParams()